80 BULLETIN 95^ UNITED STATES NATIONAL MUSEUM. 



base of caudal, twelfth and thirteenth rays longest, 1.7 in head; 

 caudal elongate, filamentous, the middle rays longest, longer than 

 head, 2.20 in length; anal similar to soft dorsal, third anal spine 

 longest, 3 in head ; last ray longest, 1.3 in head ; ventrals filamentous, 

 reaching to base of soft rays of anal, 2.77 in length of body ; pectorals 

 short, middle rays longest, 1.4 in head; scales moderate, somewhat 

 deciduous ; top of head, maxillary and preorbital scaleless. 



Color in alcohol, yellowish, probably red in life ; small brown spots 

 on body above lateral line ; a similar row on membranes between rays 

 of soft dorsal; a similar row on caudal rays where these divide, in 

 some cases there are two rows, one following each main division; 

 shnilar rows on membranes between posterior anal rays. 



Family HAEMULIDAE. 



THE GEUNTS. 



KEY TO GENERA. 



o\ Chin with a central groove behind tlie sympliysis of the lower jaw. 



h^. Soft dorsal ami aual iisuallj' with fine scales on the basal part of the 

 membranes. 

 c\ Body ovate, the back elevated ; depth greater than length of head ; 

 outer teeth of upper jaw enlarged ; lips thick ; second anal spine very 



strong, longer and stronger than the third Anisntremus,\). SO. 



c\ Body oblong, the depth usually less than length of head ; lips not very 

 thick ; scales large, those above lateral line in series mostly parallel 

 with lateral line. 

 d\ Preopercle very sharply serrate, the serrae at angle much en- 

 larged, those below angle tux-ned forward ; outer teeth in both jaws 



considerably enlarged ; second anal spine enlarged Conoilon, p. 82. 



d'. Preopercle finely serrate, the serrae at angle scarcely enlarged, those 

 below not antrorse; teeth snbequal or the outer in upper jaw 

 somewhat enlarged ; gillrakers very short and weak ; anal spines 

 small or moderate ; the second little if any longer or stronger than 

 the third ; body oblong, not elevated ; scales above the lateral line 



parallel with the back Brachydeuterus, p. 83. 



b\ Soft parts of dorsal and anal without scales. 



e^. Aual spines strong, the second much longer and stronger than the 



third Pomadasis, p. 85. 



e*. Anal spines small, tlie second shorter or equal in length to the 



third OrthopristiSyP.S't. 



a*. Chin with pores but witli no central groove at tlie symphysis; soft rays of 

 dorsal and anal naked or partly scaled ; anal fin long, vi^ith 10 or 13 

 rays Isacia,p.89. 



Genus ANISOTREMUS Gill. 



KEY TO SPECIES. 



a\ D. XI, 14 ; A. Ill, 10 ; scales in lateral line 46 to 48 paciflci, p. 81. 



a\ D. XII, 15-17 ; A. Ill, 13 ; scales in lateral line 58 to 62 scapularis, p. 81. 



